#include "combo.h" #include <bits/stdc++.h> using namespace std; string guess_sequence( int N ) { int k = 0; string p = ""; while(k < N){ if (press(p + 'A') == k + 1){ p += 'A'; k++; } else if (press(p + 'B') == k + 1){ p += 'B'; k++; } else if (press(p + 'X') == k + 1){ p += 'X'; k++; } else if (press(p + 'Y') == k + 1){ p += 'Y'; k++; } } return p; }